Use the form below to do your conversion.
Solution
Step1
Log15217=Log(217) ÷ Log(15)
Log(217)= 2.3364597338485
Log(15)=1.1760912590557
Log15217=2.3364597338485 ÷ 1.1760912590557
Ans=1.9866313229167
Step2
Alternatively, the logarithm can be calculated like this.